摘要
本文首先介绍几个引理,给出Bernstein多项式积的Bernstein多项式表示,然后提出函数Bézier三角片为凸的一个充分条件,推广文献[1],[2],[3]中结果。
A sufficient condition which is superior to that of Chang and Feng for convexity of the Bernstein-Bezier polynomials of degree n over triangles is presented. The condition is necessary for n=2 and 3.
出处
《应用数学与计算数学学报》
1991年第2期87-91,共5页
Communication on Applied Mathematics and Computation
